Brake Systems - KELSEY-HAYES (Ford Motor Co.) Single Piston Disc: Description

Single piston, floating caliper ventilated disc type, actuated by hydraulic system. Disc (rotor) is fixed to front wheel hub. Anchor plate is bolted to spindle arm, and caliper is attached to anchor plate by two spring steel stabilizers (Some models use a single spring stabilizer). Caliper slides on two guide pins attached to stabilizers. Single cylinder bore contains piston with molded rubber dust boot which seals cylinder bore and returns piston to released position. Rubber piston seal provides seal between cylinder and piston. Outboard shoe and lining assembly is attached to caliper by two pins and spring clips; inboard shoe and lining attaches to end of piston by two hold-down clips. A proportioning valve provides balanced braking action between front and rear brakes. Ford, Mercury, Continental Mark III & IV, Lincoln Continental and Thunderbird also have a metering valve in the hydraulic line to the front brakes.